Dark Green: Firm commitments from incumbent: BT (10M), Belgacom, Australian NBN, Swisscom, Austria, Bezeq Israel, Chunghwa Taiwan, Telus Canada, Telekom South Africa, SK Korea, (U.S.) AT&T, Century, Frontier, Windstream, Belgium, Omantel
Mid Pink: Smaller carriers in Germany, Norway, Finland, Japan
- Published: 21 July 2016 21 July 2016
World leader British Telecom is praying they'll get 200-300 meg at 400 meters. Update 7/28 Windstream is the first using bonding, which means the numbers are not so crazy. Still unlikely, however. *** Thomas told investors he will get double the reach. Sean Buckley of Fierce reports Windstream will deploy G.fast. Update 8/6 Removed 2017 date. Might be 2016.*** They have a million DSL customers, down 40,000 on the year, scattered in the U.S. South and Midwest. Only 26% of those customers can get 50 megabits, while cable across most of America is at 200 megabits headed to a gigabit. As you can see in the press release below, Windstream, like Frontier, is selling 20-~60 megabit service as "up to 100 megabits."
CEO Tony Thomas is a finance guy who needs to spend more time listening to his engineers. Buckley quotes, "G.fast amendment 2 has a lot of potential and we're working with our vendors to make sure that can go into the products as we look towards 2017," Thomas said. "You'll be able to get 200-300 Mbps speeds at further distances of 2,000 to 3,500 feet from the home." Both theoretical studies and the early chip designs don't expect those speeds to go nearly that far.
- Published: 20 July 2016 20 July 2016
Ethernity going for 48 port DSLAMs. You need a heckuva lot of processing power when you are pushing 10-20 gigabits through a DSLAM. The company has been supplying network/flow processors for Ethernet controllers and similar for more than a decade.
Xilink's Zynq combines dual ARM cores for control with programmable gate arrays for the dedicated application. FPGA's can be extremely powerful today. A different "Xilinx 16nm FPGA packs 5.2 billion transistors to support seven programmable cores." Rick Merritt.
- Published: 28 June 2016 28 June 2016
These are my estimates, not from BT. I combined Andrew Ferguson's mapping results with cost estimates from several industry sources. Carriers use DSL instead of fiber because it's much cheaper, with likely costs of $100-$300 for the gear and installation. Even so, I was amazed when I calculated the BT cost for 10M homes servable. It's probably less than ~$300M/year for four years.
That's a heckuva of money to you and me, but a very small investment for a company the size of British Telecom. ~$300M is ~1% of revenue and 10% of the capital budget. It's probably less than BT is currently spending on DSL at slower speeds and will not require increased investment. The cost will be less if you make some plausible assumptions.
- Published: 28 June 2016 28 June 2016
75% of the G.fast lines in BT's trial are delivering > 300Mbps downstream and 30-50Mbps upstream, Trevor Linney told the Paris G.fast Summit. The majority of lines are less than 150 meters. 17% of the lines delivered between 200 & 300 megabits; 10% 100-200 megabits; 3%, 100 megabits.
38% of lines were < 100 meters; 35% 100-150 meters; 14% 150-200 meters. 8% 200-250 meters; 5% > 250 meters. Current systems are not delivering the goal of 300 megabits 300 meters but Trevor Linney is confident that improvements already on the way will bring BT close to the plan.
- Published: 11 June 2016 11 June 2016
Experts talking to their peers generate more signal, less noise. Speakers at TNO don't have to buy a sponsorship so they don't feel entitled to give a marketing pitch. The conference invites the best engineers in the industry; most speakers knock themselves out to prove they belong.
The broadband story of 2016 is G.fast bringing telco speeds higher - 200 to 800 megabits. BT promises 10M lines; John MacDonald will present their test data June 28. Swisscom and Telecom Austria will follow with more data. They will confirm that G.fast works almost as promised for most customers. Problems remain to be solved, like powerline interference, which affect 5-20% of lines. I'll be particularly interested in BT's experiments at 250 meters and above, new ground for the industry.
Robin Mersh, Kevin Foster, and Tom Starr of the Broadband Forum will have plenty to say. They are opening up the Forum to a wider community and have an ambitious program going forward.
- Published: 07 June 2016 07 June 2016
Telcos could have a massive advantage in upstream speed. Sckipio is confident they will deliver an efficient way to switch bandwidth. I want upstream. Jennie does video and we upload terabytes to Amazon's unlimited cloud. My neighbor probably prefers downstream.
This "dynamic time slot allocation" (DTA) demonstrated by Adtran worked over coax. No vectoring is needed because the shielding minimizes any crosstalk. Calix has previously shown G.fast over coax. The engineers are confident they will soon be able to deliver 750 up, 750 down on coax. Their companies have promised that to AT&T, which acquired coax systems with DirecTV.
Vectoring a DTA system in typical telco multi-line binders is much more challenging.